Amtrak blows. You have a definite event. That line has something go wrong all the time. It isn't like a commuter train between Chicago and St. Louis that runs 5 times a day. You've got one shot a day on the Zephyr. Return is fine if you have nothing else going on. Getting there on time? who knows. you can look a trends and how they have been doing, but my delays on the zephyr include:
Derailments
Tornado/weather
Hit Cattle
Hit People
Medical Emergency
Drug searches
Naked Lady hopped up on drugs
Also, you are low priority, have to sit and weight if B&N wants their train moving.
I have bad luck on Amtrak. Might work well. Might cause you to miss the whole game, and give you a chance to have one of the above stories for yourself. Odds are it happens somewhere else and you don't even get to witness the fun.